Introduction: Suzi is an annual upright herb with aroma, green stems, rounded and quadrangular, multi-branched, densely covered with long and slender white hairs except at the base. The apex is acute or acuminate, the base is round or broadly wedge-shaped, the edges are coarsely serrated, both sides are green and hairy, and the underside is slightly pale and has glandular spots. Medicinally used to treat cough, phlegm and asthma, qi stagnation, constipation and other diseases
Morphological characteristics: Perilla frutescens, an annual erect herb, fragrant, 0.5-1.5m high, green stems, rounded and quadrangular, multi-branched, densely covered with slender white hairs except at the base. The leaves are opposite; the leaves are oval or round, 3-9.5cm long, 2-8cm wide, the apex is acute or acuminate, the base is round or broadly wedge-shaped, the edges are coarsely serrated, both sides are green and hairy, and the lower side is slightly Pale and glandular; petiole 10-45mm long, densely covered with white hairs. Racemes axillary and terminal; bracts ovate, apex acute or caudate; calyx bell-shaped, with 5 teeth and 10 veins, divided into 2 lips, with hairs and glandular spots on the outside, and long soft throat on the inside Corolla white, tubular, 2-lipped, with hairs on the outside, 1 ring of hairs on the middle part of the inner surface, upper lip with 2 shallow lobes, wider lobes, slightly concave apex, lower lip with 3 lobes, and the lobes on both sides are semicircular, The middle lobe is transversely oval, bent downward; the stamens are 4, 2 strong, slightly extended, the filaments are glabrous, and the pollen sacs are 2-chambered; the ovary is 4-lobed, the style is hairless, slightly extended, and the stigma is 2-lobed. Nutlets are brown or off-white, obovate, about 2mm long and 1.7mm in diameter. The flowering period is from August to September. The fruiting period is September-October.
The fruit is oval or slightly triangular cone-shaped, with a long diameter of 2.5-3.5mm and a short diameter of 2-2.5mm. The surface is gray-white to yellow-white, with raised reticulate patterns. The peel is crisp and easy to crush. The seeds are yellow-white and rich in oil. The smell is slightly fragrant and feels greasy when chewed. The ones with large, plump grains and no impurities are preferred.
Cultivation Techniques:
⒈Climate and soil: Warm and humid climate is suitable. Well-drained, loose and fertile sandy loam is best.
⒉Soil preparation: The land is plowed deeply in late autumn and early winter, and is weathered in winter. Before sowing in the following spring, it is then plowed and leveled to make a 1m wide border.
⒊Planting: Propagate with seeds. There are two types: seedling transplanting and direct seeding.
⒊1. Seedling cultivation method: The sowing period is in early April, broadcast or drill sowing, sow the seeds evenly on the border surface, and cover them lightly with fine soil. For drill sowing, first open a trench on the border with a row spacing of 10-15cm, sow the seeds into the trench and cover with 3-5mm of fine soil. The seedlings will emerge 8-10 days after sowing. When the seedlings are 15-20cm high, they can be transplanted. Open holes according to the row spacing of 50cm and the plant spacing of 30cm. Plant one plant in each hole, cover with soil and compact it, and then water.
⒊2. Live broadcast method: The sowing period is from early April to late April, sow in drills or holes, with row spacing of 40-50cm and plant-to-plant spacing of 30-40cm. Cover with soil and water after sowing.
⒋Field management: After sowing, keep the soil moisture regularly, and plant the seedlings once when they are 3-4cm tall. During the growth period, loosen, cultivate and weed 2-3 times. And topdress with human excrement, cake fertilizer or ammonium sulfate 1-2 times. Pay attention to watering during drought.
⒌Pest and disease control: When leaf curlers are found during the growth period, in addition to killing them, you can spray 1 catties of 6% wettable 666 powder with 300 catties of water.
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